Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Planar Fluence

  1. Sep 1, 2018 #1
    Hello everyone,

    Suppose a situation where you have a broad plane-parallele beem of electrons wich is perpendiculary incident upon a thin foil wich scatters the e- for an angle X. I did calculus and the ratio of flux density below the foil respect with the foil remove is 1.06. But, What are the ratio of the number of e- per cm2 passing through a plane just behind (and parallel to) the foil to what with the foil removed? I thing the ratio must be 1.06, also.

    Help¡
     
  2. jcsd
  3. Sep 1, 2018 #2

    mfb

    User Avatar
    2017 Award

    Staff: Mentor

    A sketch would help.
    Shouldn't this be the result of an integral over the angular distribution?

    Why does your flux increase?
     
  4. Sep 1, 2018 #3
    As I saw in Introduction to Radiological Physics and Radiation Dosimetry - Attix, these is an event that happens when you are working with a broad beam. Is an excercise from the first chapter (the third excercise). The exercise gives the answers, and I don´t know why is the unity the particles ratio.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted